It certainly is quite warm to the touch. I'm not sure what the deal is. Like I said, it has no difficulties running at high speeds and incredible detail, but it can't do it for long. I doubt my hardware is the problem (Athlon 2100, 1GB RAM, 80GB WD SE).

So given how warm the card its self is, I tend to think it's due to heat there. The fan on the card is working, too.